I use a straight to shave my head exclusively. When I use it on my face, however, it's a bit uncomfortable. I'm sure my cheap Chinese sharpening stones, my cheap eBay strop and my poor usage of each have a lot to do with it as I find myself having to hit the stones more often than usual. I also have a deadly shavette that I use on occasion but as my straight collection increases, it has been seeing less usage of late. My compromise lately has been to use the straight on my head and my birth year Black Beauty DE for a couple of passes on my face. I then use the remaining lather in the brush on my face and continue to clean it up with a final pass with my straight. I find this to be a great setup resulting in a great shave with no discomfort. I normally use this setup every second day with just standard DE face shaves in between.
Anyone else use the combination shave?